<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>计算属性的基本使用</title>
</head>
<body>
<div id="app">
  <!--用多种方式展示姓名，姓名之间加空格-->
  <!--1、普通方式-->
  <h2>{{firstName + ' ' + lastName}}</h2>
  <h2>{{firstName}} {{lastName}}</h2>

  <!--2、methods方式-->
  <h2>{{getFullName()}}</h2>

  <!--3、computed计算属性-->
  <h2>{{fullName}}</h2>
</div>
<script src="../js/vue.js"></script>
<script>
  const app = new Vue({
    el: '#app',
    data: {
      firstName:'Kobe',
      lastName:'Bryant'
    },
    computed: {
      fullName: function(){
        return this.firstName + ' ' + this.lastName;
      }
    },
    methods: {
      getFullName(){
        return this.firstName + ' ' + this.lastName;
      }
    }
  });
</script>
</body>
</html>
